Help with a christmas party dress for new thinner me!

Am in the process of losing weight - started at the beginning of summer as a size 22 now 5 stone down I'm a 14 bordering on a 12 ð my head is struggling to catch up so would appreciate some links to fabulous party dresses. This is me:

5ft 6 - dark blonde hair, v pale skin36G boobs - damn cup size won't shrink but started at a 42G so can't complain!34inch waist 45inch hips so hourglassy type figureArms are still flabby at the top so would prefer some form of sleeve? Prefer on the knee or below - it's a dinner and drinks in a restaurant then poss onto somewhere for dancing so not over formalOh and I'm 33

That's a good idea stampy there's a big John Lewis near me that might do something similar - it's another case of needing my head to catch up, before it would have been my idea of hell the thought of someone judging what I look like now it does appeal!

I recently bought the sleeveless version of this. It's cheap and the quality of the stitching isn't that great but is ok. It looks amazing on though! I'm a size 6-8 with big boobs, it makes them look great! It's a really flattering dress.

I second, or is it third, having a session with a personal shopper to get you into thin girl mode for clothes. As well as Debenhams, John Lewis and House of Fraser, I'm pretty sure the bigger Top Shops do it too.

Alternatively, if there is a good local independent clothes shop near you go in and chat to them and hopefully they can help you.